Interviewer instructions
Ask the main source of heating of the household and choose the best suitable answer from the given list and record it with corresponding code. If there is no suitable response, fill 'Other-7' in the question. If the household uses coal stove or breek stove as a heating source, choose 'Simple heating unit' or the code '4'. If the household has 'Simple heating unit', go to question 4 of Energy module.
Question post text
If answer is 4 > Go to question 4 of Energy module